Edwaed m



(No Model.)

B.-"M BENTLEY. TELEPHONE SEATIONAPPARIATUS.

Patented Apr.;29, 1884.

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U ITED STATES PATENT "OFFICE.

; EDVARD M. BENTLEY, OF BROOKLYN, NEW YORK.

TELEPHONE-STATION APPARATUS.

SPECIFICATION forming part of Letters Patent No. 297,909, dated April 29 1884. Application filed January 10, 1884. (No model.)

T at whom it may concern: a circular series of metallic contact-plates, A Be it known that I, EDWARD M. BENTLEY, a 'B O D E. The distance of these plates is so citizen of the United States, residing at Brookadjusted that spring X, in its movement caused lyn, New York, have invented certain new and by depression of arm L, passes from. A to B,

useful Improvements in Telephone -Station and Q passes from C to E, while Z remains Apparatus, of which the following is a specificonstantly on D. --Another switch controlling cation. the circuit is placed along lever-arm L, so My invention consists in devices whereby that'the operating-button b can be readily de-- the telephonic apparatus is brought by a sinpressed by the thumb of any one grasping i0 gle movement into listening position, the same the lever-arm, to draw it down. This switch movement making all the necessary circuit- (shown in Fig. 4) consists of a spring, 6, conconnections, and, if desired, also operating nected to the incoming line, and normally the signaling-generator. resting in contact with point a, but adapted I The best form of my invention is illustrated to be pressed by button 12 from point a over 15 in the accompanying drawings, wherein Figagainst point b.

, ures 1 and 2 are respectively side and front It is obvious that, in place of the switch on elevations of the apparatus. Fig, 3 is a secthe lever-arm, the ordinary connections forthe tion on line 00 a; of Fig. 2, and Fig. 4 is a decalling-generator may be employed, the gentail. erator being in circuit with the call-bell, and

\ 20. In the drawings, L is an extensible levera short-circuit around it being automatically arm rigidly connected to an operating-shaft, broken by the rotation of the armature.

p, which projects from the side of box N, in G is the call-bell. P S is the induction-coil. which it has its bearings. This arm carries T is the transmitter, of the usual form, on the at its outer extremity the receiving-telephone hinged door of the call-box. There is a toothed 25 F, with its axis horizontal, and is made exsector, 70, on shaft just inside of disk H, tensible by being constructed in two parts, 0 which gears into a pinion, f, on shaft M of and 7c, the former part being forked and emthe magneto-generator. The generator is not bracing the other part within the fork, so as to shown in full, its construction being well slide longitudinally thereon. The relative moknown; and the lines 5 and 6 represent the 0 tion of the two parts is guided by pins s 3, proconnection with the two commutator-brushes jecting from part 70 into a slot in one branch of of the machine. The arm L is of such a length R the fork of 0, and they are normally held toas to reach the ear of any one speaking into gether by a spring, r. Any other method of transmitter T. It normally rests, as shown, longitudinal adjustment of the arm maybe emagainst stop R, in which case the circuit may 8 5 5 ployed. The arm may also have a lateral be tracedfrom 1 to spring e, contact a, bell G, movement on pivot m, being normally held plate A, spring X, strip I, spring Z, plate D, straight by spring 9. These movements allow line 3, and out at 2. In this situation any inthe receiver to be brought to the ear of any coming current will ring call-bellG, the transone, and also permit a movement of the head mitter and receiver being cutout. 0 0 for any purpose without removal of the instru- It is obvious that L may be drawn down ment. Arm L is normally held up in the into listening position with or without deelevated position shown by a predominating pressing the button b, according as it is despiral spring around shaft 1;, as shown in Fig. sired to work the generator to signal the cen- 3, though the spring may be replaced by a tral offioe or to listen or converse over the 5 45 weight, or have any other desired form. line. In the former case the circuit is from 1 Fastened t0 shaft 1), just inside the-box, is a to spring 6, point d, line 6, generator, line15, disk, H, of insulating material, which has and out at 2. The generator being thus in cirthree contact-springs, X, Z, and Q, projecting cuit and its armature rotated by sector k, a radially from it, and being firmly attached signal will be sent over the line to the central 50 thereto. Two of these contact-springs are conoffice.

nected by curved strip I, and they all bear on 5 One or more swings of L may be made,- and tion.

line eh and bell G may be included in the circuit. XVhen the arm is drawn down Without depression of button 1), spring X passes from A to B, and Q from Olto E. The circuit is then from 1 to 0, point a, receiver F, secondary S of induction-coil, plate B, spring X, strip 1, spring Z, plate D, and out by lines 3 and 2. At the same time the local-battery circuit is closed from battery to transmitter T, primary coil 1?, spring Q, plate E, to battery. In this case the parts are all in position for conversa- XVhen through using, the arm L may be allowed to automatically return to its normal position by action of the coiled spring. If the button I) is depressed while the arm is being restored, a signal is sent to the central ofliee, to indicate that the conversation is ended.

The advantages of my invention will be readily appreciated. A single simple movement places the apparatus in position for conversation or signals the central oflice. It requires no time and is readily learned. The line is automatically restored to its normal position, and wear of the flexible cord usually used is avoided.

I claim as my invention 1. The combination of telephonic transmitter and receiver, one being fixed to a support and movable relatively to the other, a signaling-generator, and means for operating the same, said means being actuated by the relative approach or recession of said transmitter and receiver to or from their adjacent operative position.

2. The combination of telephonic transmitter and receiver, one being fixed to a support and movable relatively to the other, a signaling-generator, means for operating the same, said means being actuated by the relative approach or recession of said transmitter and re ceiver to or from their adjacent operative position, and switching devices, also operated by said movements of the telephone apparatus.

3. The combination of atelephone-support, a telephonic receiver fixed thereto with electric connections, a signaling-generator, and mechanism driving said generator, and actuated by the movement of said support.

4. The combination of a lever-arm, a telephone supported thereby and fixed thereto, and a toothed sector on the axis of said leverarm gearing into a pinion on the shaft of a magneto-generator.

The combination of a telephone, a movable support attached thereto, a normally predominating retracting device for said support, a signaling-generator, and means for actuating said generator by themovement of said support.

6. The combination of a lever-arm, a telephone fixed thereto and supported thereby, a signaling-generator operated by said arm, and a sustaining-retractor for said arm, overcoming theweight of the telephone.

7. The combination of a call-bell and telephonic apparatus, a signaling-generator, an operating device for said generator to which the telephone-receiver is attached, and a switch actuated by said device for including the telephone apparatus in the main line.

S. The combination of alever-arm, areceiving-telephonefixed thereto, asignaling-generator, and means for operating said generator by the movement of said arm.

9. The combination of a telephone-support, a telephone carried thereby, electric conductors on said support, and an independently-operated switch also on said support, for changin g the circuit formed by said conductors.

10. The combination of a telephone-support, a telephone carried thereby, circuit-connections therefor, an electric generator, and a switch on said support, controlling the circuit of said generator.

11. The combination of a telephone call-box, calling apparatus inclosed therein, aswinging door for the same, and a separately-inclosed transmitting-telephone on the said door.

12. The combination, with a transmittingtelephone, of an adjacent receiving-telephone, a swinging supportingarm therefor having freedom of vertical and lateral movement, and switching devices actuated by the movement of said arm, for including said telephone in the main line.

18. The combination, with a transmittingtelephone, of a receiving-telephone and asupport therefor adapted to maintain it in a position for conversation adjacent to the transmitting-telephone, said receivingtelcphone havin g also freedom of lateral movement relatively to the transmitting-telephone.

14 The combination of a lever-arm, a receiving-telephone fixed thereto, a signalinggenerator, means for including said generator in circuit without the telephone, and means for operating said generator by the movement of said arm.

15. The combination of a telephone fixed to a movable support, a generator actuated by the movement of said support, an inductioncoil and local battery, and means for closing the circuit of said local battery by the movement of said support.

Signed this'10th day of January, A. D. 1884.

EDlVARD M. BENTLEY.

Attest:

HARRY E. KNIGHT, D. M. HOPKINS. 

